56396587 has 4 divisors (see below), whose sum is σ = 60734800. Its totient is φ = 52058376.

The previous prime is 56396573. The next prime is 56396603. The reversal of 56396587 is 78569365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56396587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56396587.

It is not an unprimeable number, because it can be changed into a prime (56396567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2169087 + ... + 2169112.

It is an arithmetic number, because the mean of its divisors is an integer number (15183700).

Almost surely, 2^56396587 is an apocalyptic number.

56396587 is a deficient number, since it is larger than the sum of its proper divisors (4338213).

56396587 is a wasteful number, since it uses less digits than its factorization.

56396587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4338212.

The product of its digits is 1360800, while the sum is 49.

The square root of 56396587 is about 7509.7661082087. The cubic root of 56396587 is about 383.4872600899.

The spelling of 56396587 in words is "fifty-six million, three hundred ninety-six thousand, five hundred eighty-seven".